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Abstract

This study aimed to evaluate the tenability of the proposed scoring/interpretive structure for the Woodcock-Johnson IV Test of Cognitive Abilities (WJ IV COG) Standard Battery configuration of subtests using confirmatory factor analysis (CFA) at school age. Results indicated that a three-factor hierarchical model, consistent with the CHC theory (Crystallized Ability, Fluid Reasoning, Short-Term Memory/Working Memory), provided the best fit to the WJ IV COG normative data. Whereas the preferred CHC interpretive structure was largely replicated, indices of interpretive relevance indicated that, among the Stratum II/III attributes that were located, only the omnibus general intelligence dimension should be interpreted with confidence. Nevertheless, several subtests contained adequate specificity to be interpreted in isolation apart from broad abilities. Implications for clinical interpretation are discussed.

Keywords

WJ IV COG structural validity evidence-based assessment CHC

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Confirmatory Factor Analysis of the WJ IV Cognitive: What Does the Standard Battery Measure at School Age?

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